JP5659115B2 - Lighting device - Google Patents

Description

  The present invention relates to a lighting device.

  As an example of a conventional illuminating device, there is known a device that saves energy by suppressing excessive power consumption by changing a lighting state in accordance with ambient brightness.

  Japanese Patent Laying-Open No. 2010-198884 (Patent Document 1) includes a brightness sensor that detects ambient brightness and an operation display LED that indicates an operation state of the sensor, and one of them has light shielding properties. An invention for providing a housing is described.

JP 2010-198884 A

  However, in the configuration described in Patent Document 1, since the operation display LED is always lit while the sensor is operating, the light of the operation display LED is incident on the brightness sensor, and the ambient brightness is correctly detected. There is a risk that the lighting state may become different from the lighting state desired.

  An object of the present invention is to provide an illumination device that correctly detects ambient brightness and performs a desired lighting state.

In order to solve the above problems, in the present invention, in a lighting device including a main lamp, a decorative board part provided around the main lamp, a sensor unit, and a control unit, the decorative board part is It has translucency, and the sensor unit has an illuminance sensor and an operation display LED, and is provided closer to the ceiling than the decorative board, and the operation display LED and the illuminance sensor are The control unit performs lighting of the operation display LED and ambient illuminance detection operation by the illuminance sensor at different timings. .

  Further, in the present invention, in the lighting device having a main lamp, a decorative decorative board part provided around the main light, a sensor unit, and a control part, the decorative decorative board part has translucency. The sensor unit includes an illuminance sensor and an operation display LED, and is provided on the ceiling side with respect to the decoration board portion. When detecting ambient illuminance, the control unit After the display LED is turned on and off, ambient illuminance detection by the illuminance sensor is performed several times.

According to the present invention, in a lighting device having a main lamp, a decorative decorative board part provided around the main light, a sensor unit, and a control part, the decorative decorative board part has translucency. The sensor unit includes an illuminance sensor and an operation display LED, and is provided closer to the ceiling side than the decorative board part, and the operation display LED and the illuminance sensor are provided on the decorative board part. The controller controls the lighting of the operation display LED and the ambient illuminance detection operation by the illuminance sensor at different timings to correctly detect the ambient brightness, It is possible to provide a lighting device that performs a desired lighting state.

  Further, in a lighting device having a main light, a decorative decorative board part provided around the main light, a sensor unit, and a control part, the decorative decorative board part has translucency, and the sensor unit Has an illuminance sensor and an operation display LED, and is provided closer to the ceiling side than the decorative board portion, and when detecting ambient illuminance, the control unit turns on the operation display LED. After the light is turned off, it is possible to provide an illuminating device that detects the ambient brightness correctly by detecting the ambient illuminance several times by the illuminance sensor and performs the desired lighting state.

The horizontal direction whole view of the lighting fixture of one Embodiment which concerns on this invention. The floor surface side whole figure of the lighting fixture of FIG. The ceiling side perspective view of the lighting fixture of FIG. The floor surface side perspective view of the lighting fixture of FIG. The elements on larger scale of FIG. FIG. 2 is an overall perspective view of the sensor unit 300 of FIG. 1. The elements on larger scale of FIG. The exploded view of the sensor unit of FIG. The flowchart of one Embodiment which concerns on this invention. 1 is a block diagram of an embodiment according to the present invention. The time chart of one Embodiment which concerns on this invention.

  An embodiment of the present invention will be described with reference to FIGS. The luminaire according to the present invention includes a main lamp 100 including a main light source. FIG. 1 is an overall view of a luminaire according to the present invention as seen from the side. FIG. 2 is an overall view of the luminaire according to the present invention as seen from the floor side. As shown in FIGS. 1 and 2, the main lamp 100 includes an upper main lamp body 110 and a translucent cover 120 that covers the main lamp body 110 from below. In addition, a sensor unit 300 that is attached to the periphery of the main light 100 is provided. The sensor unit 300 includes a sensor unit main body, an operation display LED 301, and an illuminance sensor 302. In addition, around the main lamp 100, there is provided a decorative board portion 105. The sensor unit 300 is provided on the ceiling side with respect to the decoration board portion 105.

  FIG. 3 is a perspective view of the luminaire according to the present invention as seen from the ceiling side. FIG. 4 is a perspective view of the luminaire according to the present invention as seen from the floor side. Supplement the explanation. A main light source attached to the main lamp 100 is an annular fluorescent lamp (not shown). A decoration board 105 is attached to the main light 100. The decorative decorative board portion 105 is transparent. The decoration board portion 105 is located below the sensor unit main body of the sensor unit 300. A part of the light emitted downward from the operation display LED 301 is reflected by the decoration board portion 105 and irradiates the lower lid 324. This relieves the lower lid 324 from becoming a dark part when viewed from below. FIG. 5 is a partially enlarged view of FIG. The operation display LED 301 and the illuminance sensor 302 are provided so as to face the direction of the decoration board portion 105, that is, to face the floor surface direction (irradiation surface direction). For the illuminance sensor, a phototransistor or a photodiode is used. By being provided so as to face the floor surface direction, it is possible to create an ambient brightness environment. However, the direction may be a direction looking directly below or a direction having a slight angle and looking downward.

  FIG. 7 is a partially enlarged view of FIG. A cushion portion 400 and an insect repellent portion 401 are provided on the ceiling side surface of the main lamp main body 110. Both the cushion part 400 and the insect repellent part 401 have an effect of relaxing the contact between the ceiling and the main lamp body. The insect repellent portion 401 is provided so as to surround the central portion of the back surface of the main lamp main body, and prevents insects from entering the inside.

  FIG. 6 is an overall perspective view of the sensor unit 300. An operation display LED 301 and an illuminance sensor 302 are provided in the sensor unit main body, and a hole is provided in a portion where each is provided. The operation display LED 301 and the illuminance sensor 302 face the outside from each hole. An illuminance sensor window 303 is provided around the hole of the illuminance sensor 302. The illuminance sensor window 303 is higher than the surroundings and is a convex portion (light-shielding portion). The illuminance sensor window is provided with a light shielding member. When the light from the operation display LED 301 enters the illuminance sensor 302, a sensing result is obtained that the brightness is brighter than the correct ambient brightness, and the main light is controlled accordingly. The illuminance sensor window 303 is provided to prevent light from the operation display LED 301 from entering the illuminance sensor 302 and performing erroneous sensing. In the present embodiment, the illuminance sensor window 303 is provided as a cylindrical shape having a hole that communicates vertically with the illuminance sensor 302 surrounding the hole. Since it is sufficient that the light from the operation display LED 301 does not enter directly, the illuminance sensor window 303 may be provided only on the operation display LED 301 side. In this case, it is not a cylindrical shape but a wall shape. In this embodiment, the decorative urn board portion 105 has an annular shape and is not provided with a hole or the like. This is because the lighting device without the sensor unit is used. However, this is not the case when the purpose is to increase the accuracy of the illuminance sensor. By providing a hole in a portion facing the illuminance sensor in the decorative cover plate portion 105, it is possible to detect the illuminance around the device more accurately.

  FIG. 8 is an exploded view of the sensor unit 300.

  Power is supplied to the operation display LED 301 and the illuminance sensor 302 by the sensor unit main body. A light transmitting hole 303 is formed in the sensor unit main body 320 to allow light emitted from the operation display LED 301 to pass downward. The sensor unit main body 320 in the illustrated lighting fixture includes an upper lid 322 on the upper side and a lower lid 324 on the lower side attached to the upper lid 322. A light shielding wall 328 that is integral with the lower lid 324, covers the periphery of the operation display LED 301, and blocks light emitted from the operation display LED 301 in the lateral direction is formed around the transparent hole 303 formed in the lower lid 324.

  The operation display LED 301 is covered with a light shielding wall 328. The upper lid 322 is assembled to the lower lid 324. The upper lid 322 is also provided with a light shielding wall similar to the light shielding wall 328 of the lower lid 324. At this time, the light shielding wall and the light shielding wall 328 of the upper lid function as positioning members. The position is adjusted in such a way that the light shielding wall of the upper lid is accommodated in the light shielding wall 328. The light shielding wall 328 functions as a light shielding and positioning member. The operation display LED 301 and the illuminance sensor 302 are provided on the sensor base 330. The operation display LED 301 and the illuminance sensor 302 face the hole through the lens 325. The lens 325 has an effect of collecting light, an effect of adjusting the direction of emitted light, an effect of preventing adhesion of dust and the like from the outside, and the like. The upper lid 322 is provided with screw holes 350 and 351. A hole is provided in the lower lid so as to communicate with the screw holes 350 and 351. In this embodiment, the screw hole 350 is for fixing the upper lid 322 and the lower lid 324, and the screw hole 351 and the screw hole 354 are for fixing the sensor unit 300 to the lighting fixture body. .

  The light from the operation display LED 301 passes through the lens 325 and travels downward. The upper lid 322 and the lower lid 324 constituting the sensor unit main body 320 are made of synthetic resin and are both opaque.

  Reference numeral 310 in FIG. 6 denotes a mounting arm attached to the sensor unit main body. The mounting arm 310 is fixed to the upper surface of the main lamp body 110 and a position near the periphery. The mounting arm 310 also serves as a power supply wiring rod.

  Reference numeral 330 in FIG. 8 denotes a wiring board. The illuminance sensor 302 and the operation display LED 301 are mounted on the wiring board 330. The wiring board 330 is assembled so that the illuminance sensor 302 and the operation display LED 301 are in a predetermined position. A downward pin portion of the upper lid 322 that is not shown in the figure is inserted into the boss portion through a hole in the wiring substrate 330, and the wiring substrate 330 is held on the boss portion.

  Although not shown, a storage battery that is a secondary battery for operating the control unit at the time of a power failure and lighting the operation display LED 301 and the auxiliary lamp (not shown) may be placed. A nickel hydride battery can be considered as the storage battery.

  When the nickel metal hydride battery is provided, a cover portion is further provided on the upper cover 322, so that the battery storage portion is covered with a removable cover so that the battery can be replaced.

(Description of circuit block)
Next, a function example of the illumination system (illumination apparatus) in the present embodiment will be described with reference to FIG.

  Control of the entire illumination device (illumination device body) 1 with a remote control receiver is performed by a processing unit 40 in the control circuit 20, and the processing unit 40 is configured by a CPU (Central Processing Unit) and a main memory (not shown), The program is developed in the main memory to realize various functions.

  A transmission signal from the remote control transmitter is received by the remote control reception circuit 21 and sent to the processing unit 40. Based on this transmission signal, the processing unit 40 includes a main lamp (first light source) driving circuit 41 that is a driving circuit for the main lamp (first light source) 10, a safety light driving circuit 42 that is a driving circuit for the safety lamp 11, and The auxiliary light drive circuit 43 that is a drive circuit of the auxiliary light (second light source) 12 is controlled to turn on, turn off, or dimm each light source according to the transmission signal.

  Further, the control circuit 20 includes a commercial power supply monitoring circuit 44, which monitors the commercial power supply state to the lighting device with a remote control receiver (illuminating device main body) by the commercial power supply monitoring circuit 44 and supplies power to the processing unit 40. Communicate state. When commercial power is supplied to the processing unit 40, the power supply switching circuit 46 is controlled so that power for driving itself and drive power for each drive circuit are supplied from the auxiliary power circuit 50. Further, the charging circuit 45 is controlled to charge the battery 30. In such a state, when the user performs an operation with the remote control transmitter 2, the processing unit 40 performs a main lamp (first light source) driving circuit 41, a safety light driving circuit so as to perform an operation according to the transmission signal. A signal is sent to 42 to control lighting, extinction or dimming of the main lamp (first light source) 10 and the security lamp 11.

  On the other hand, when the power failure or the wall switch 3 is turned off and the commercial power supply 4 is not supplied with power, the power supply switching circuit 46 is controlled so that the power supply for driving itself and the drive power supply to each drive circuit are supplied from the battery 30. Further, the charging circuit 45 is controlled to stop the charging of the battery 30, and the operation of each driving circuit is also stopped to turn off each light source. When the lighting signal of the auxiliary lamp (second light source) 12 is sent from the remote control transmitter 2 in this state (remote control reception standby state), the remote control receiving circuit 21 receives the signal and receives the auxiliary lamp (second light source). ) 12 lighting signals are sent. In response to the transmission signal, the processing unit 40 controls the auxiliary lamp driving circuit 43 based on the transmission signal to turn on the auxiliary lamp (second light source) 12. If it is determined that the commercial power source 4 is not powered, the lighting control is not performed even if a signal for lighting the main lamp (first light source) 10 is transmitted. In addition, when the safety light 11 and the auxiliary light (second light source) 12 are used together as one light source, or the light source of the safety light 11 is shared by the light source of the auxiliary light (second light source) 12, As for the transmission signal of the remote control transmitter 2, the lighting signal of the safety light 11 becomes an auxiliary light lighting signal, and the safety light 11 or the safety light 11 and the auxiliary light (second light source) 12 are turned on at the time of power failure by the lighting signal of the safety light 11. It is also possible to make it.

  An illuminance detection circuit, an illuminance sensor, an operation lamp drive circuit, and an operation display LED are connected to the control circuit. The lamp driving unit is composed of an inverter or the like. The charge control unit detects full charge and stops charging to prevent overcharging.

(Description of operation)
Based on the flowchart of FIG. 9 and the time chart of FIG. 11, the automatic light control operation will be described.

  To enter the automatic light control mode, proceed as follows.

  The lighting state is set to the illuminance for automatic light control using the remote control (set value a). This illuminance is stored inside the microcomputer.

  Subsequently, the “light control” button on the remote controller is kept pressed for a predetermined time (about 2 seconds in the embodiment). When the main body receives this signal and enters the automatic light control mode, the buzzer notifies the user of an increased number of rings compared to normal reception.

  The operation display LED 301 is turned on.

  After the operation display LED 301 is turned off, illuminance is captured by the illuminance sensor 302 at an interval of a predetermined time T4 (capture value b).

The captured value b is compared with the set value a and the lighting state is adjusted as follows.
(1) When a> b, the output of the illumination is lowered because it is too bright than the set value.
(2) When a <b, it is too dark, so increase the output of illumination.
(3) When a = b, it is as set, so the illumination output is not changed.
The above operation is repeated.

  The comparison with the captured value b and the illuminance adjustment may be performed every time capturing is performed at the predetermined interval T4, or may be performed several times and the average value or the maximum illuminance may be performed as the captured value b.

  In the present embodiment, the setting value a is the brightness adjusted by the user with the remote controller. However, a method in which brightness of several stages is determined in advance by a program of a microcomputer and is selected and set from these.

  Next, the illuminance capturing operation will be described.

  When the dimming mode is entered, the operation display LED 301 is turned on. At the same time, timing of the predetermined time T3 is started.

  When the lighting time of the operation display LED 301 reaches a predetermined time T1, it is turned off.

  After the operation display LED 301 is turned off, it waits until a predetermined time T2 elapses.

  After a predetermined time T2 has elapsed, the illuminance is read at a predetermined interval T4 and set as the fetch value b.

  The detection of illuminance is continued at a predetermined interval T4 until the predetermined time T3.

  When the predetermined time T3 has elapsed, the operation display LED 301 returns to lighting.

  The predetermined time T1 is a time during which it is possible to recognize that the user is operating without any trouble in illuminance detection, and is set to about 0.1 seconds in the embodiment.

  The predetermined time T3 is about 3 seconds in the embodiment.

  The predetermined times T2 and T4 are the time until the operation is not affected, and the waiting time is determined in accordance with the response time of the illuminance detection unit.

  As described above, the operation display LED 301 and the illuminance sensor 302 are alternately operated, so that a part of the light emitted downward from the operation display LED 301 is reflected by the decoration board 105 and irradiates the lower lid 324 to the illuminance sensor 302. The incident can be prevented. That is, it is possible to accurately detect the ambient illuminance by sensing with the illuminance sensor 302. The brightness of the main lamp can be changed according to the ambient illuminance obtained by the illuminance sensor 302, and energy saving can be achieved.

(Influence on storage battery)
There is a demand for a configuration in which the auxiliary lamp and the operation display LED 301 are temporarily turned on during a power failure. Since power supply from the commercial power supply is lost during a power failure, a separate power supply is required to operate the auxiliary lamp and the operation display LED 301. A storage battery can be considered as a simple configuration. However, the storage battery has a characteristic that the life is shortened when the operating temperature is increased. Since heat radiation from the fluorescent lamp is high, it is necessary to provide a storage battery as far as possible from the fluorescent lamp in order to prevent the life from being shortened. However, if the distance is too great, the overall size of the lighting device will increase.

  In this embodiment, the storage battery is provided in the sensor unit, and the sensor unit is provided on the ceiling side from the decorative board portion. By positioning the decorative board portion 105 between the storage battery and the fluorescent lamp in the main lamp, it is possible to reflect the radiant heat from the fluorescent lamp and prevent the storage battery from being overheated.

  Moreover, since the battery part is outside the main body, it is easier to dissipate heat. Thereby, there exists an effect that it can prevent that the lifetime of a storage battery becomes short.

DESCRIPTION OF SYMBOLS 1 Lighting apparatus with remote control receiver 2 Remote control transmitter 3 Wall switch 4 Commercial power supply 10 Main lamp 11 Safety light 12 Auxiliary light 20 Control circuit 21 Remote control reception circuit 30 Battery 40 Processing part 41 Main lamp drive circuit 42 Safety light drive circuit 43 Auxiliary Lamp drive circuit 44 Commercial power supply monitoring circuit 45 Charging circuit 46 Power supply switching circuit 50 Auxiliary power supply circuit

Claims (2)

In an illuminating device having a main light, a decorative decorative board portion provided around the main light, a sensor unit, and a control unit,
The decorative board part is translucent,
The sensor unit has an illuminance sensor and an operation display LED, and is provided closer to the ceiling than the decorative board portion,
The operation display LED and the illuminance sensor are provided so as to face the direction of the decorative board portion,
When detecting ambient illuminance, the control unit performs lighting of the operation display LED and ambient illuminance detection operation by the illuminance sensor at different timings. The lighting device according to claim 1.
When detecting ambient illuminance, the control unit performs ambient illumination detection by the illuminance sensor several times after the operation display LED is turned on and off .